Hi: I'm using the openssl and EVP_EncryptInit_ex, EVP_EncryptUpdate, EVP_EncryptFinal_ex sequence to encrypt a a short message with 3des-cbc, but i get an strange problem. I expect if the data size is 8 bytes, the encrypted data lenght is 8 bytes too, but i get 16 bytes. If the data size is 16 bytes, the encrypted data length is 24 bytes. I'm sure that the data size is 8 bytes, or 16 bytes, but i never get the expeted results, somebody know why? The command used in openssl:
openssl des3 -iv 1234567812345678 -K 0123456789ABCDEFFEDCBA98765432100123456789ABCDEF -in claro.txt -out claro.bin ls -l show 8 bytes in claro.txt, and 16 bytes in claro.bin When i use the EVP_EncryptUpdate function, the strlen show 8 bytes in the text message. Thanks. -- ------------------------------------------------------------------ José Hidalgo C. Ingeniero de Software Akzio Consultores - http://www.akzio.cl Huérfanos 669 of. 609 - Santiago Ofi:(+56)(2)6320567 - Cel:(+56)(9)88377088
